On Friday 06 December 2013 14:22:22 Florian Rist did opine: > Yes proper eye protection is important, but also at just 2 W and a diode > from a DVD burner. The power density that can be reached at the retina > is surprisingly high as soon as you deal with culminated (parallel) > beams. So even 2 W of continuous wave beam can cause permanent damage > especially if the light is in the visible range of the spectrum. The > 10600 nm fro a CO2 laser are less dangerous, as they will 'only' burn > the corona and not reach the retina. > > cu > Flo
Hence the cataract warnings that seem to surround the long IR CO2 models. Unforch I do have some already. Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> For I swore I would stay a year away from her; out and alas! but with break of day I went to make supplication. -- Paulus Silentarius, c. 540 A.D. A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. ------------------------------------------------------------------------------ Sponsored by Intel(R) XDK Develop, test and display web and hybrid apps with a single code base. Download it for free now! http://pubads.g.doubleclick.net/gampad/clk?id=111408631&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
